What is the postal code of Zullwil?

Zullwil has 2 postal codes: 4233, 4234.

What is the tax rate in Zullwil?

The municipal tax multiplier of Zullwil is 139% (2026); canton SO levies 104%.

How much tax do you pay in Zullwil?

A single person without children pays about 17'974 CHF income tax in Zullwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 102 of 104 in canton SO. Source: ESTV (2026).

How many residents does Zullwil have?

Zullwil has 704 residents (2025).

How many foreign residents live in Zullwil?

Zullwil has 124 foreign residents, a share of 17.61% (2025).

Switzerland · Canton SO

Zullwil

4233–4234

SO CANTON4233 4234

Residents

704

Area

3.7 km²

Population density

192 pop./km²

Elevation

603 m a.s.l.

Terrain up to

973 m a.s.l.

Tax multiplier

139%

Postal codes

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN

Demographics

BFS · 2025

Women

334 47.4%

Men

370 52.6%

Children & youth (0–19)

159 22.6%

Swiss citizens

580 82.4%

Foreign residents

124 17.6%

Population density

192 pop./km²

0–19 · 159 · 22.6%20–64 · 401 · 57.0%65+ · 144 · 20.5%

Foreign residents 17.6%0%64.0%

STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026 · swisstopo, retrieved 24.08.2026

Vote results for Zullwil

BFS

14.06.2026Änderung des Bundesgesetzes über den zivilen Ersatzdienst (Zivildienstgesetz, ZDG)Federal● Accepted · 52.5% Yes

57.6% YesNo 42.4%

14.06.2026Volksinitiative «Keine 10-Millionen-Schweiz! (Nachhaltigkeitsinitiative)»Federal● Rejected · 45.2% Yes

64.8% YesNo 35.3%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung des KantonsratsgesetzesCantonal SO● Accepted · 58.6% Yes

46.1% YesNo 53.9%

14.06.2026Stellvertretung im Kantonsrat bei Mutterschaft: Änderung der KantonsverfassungCantonal SO● Accepted · 58.7% Yes

46.5% YesNo 53.5%

08.03.2026Bundesgesetz über die IndividualbesteuerungFederal● Accepted · 54.3% Yes

41.8% YesNo 58.2%

08.03.2026Volksinitiative «Für eine gerechte Energie- und Klimapolitik: Investieren für Wohlstand, Arbeit und Umwelt (Klimafonds-Initiative)»Federal● Rejected · 29.3% Yes

14.2% YesNo 85.8%

08.03.2026Volksinitiative «200 Franken sind genug! (SRG-Initiative)»Federal● Rejected · 38.1% Yes

55.5% YesNo 44.5%

08.03.2026Bargeldinitiative und Gegenvorschlag: StichfrageFederal● Rejected · 37.4% Yes

52.5% YesNo 47.5%

08.03.2026Bundesbeschluss über die schweizerische Währung und die Bargeldversorgung (Gegenvorschlag zur Bargeldinitiative)Federal● Accepted · 73.4% Yes

62.8% YesNo 37.2%

08.03.2026Volksinitiative «Ja zu einer unabhängigen, freien Schweizer Währung mit Münzen oder Banknoten (Bargeld ist Freiheit)»Federal● Rejected · 45.6% Yes

60.7% YesNo 39.3%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 31.08.2026

Politics

National Council election 2023

SVP38.4% · strongest party

SVP38.4%

Mitte28.2%

FDP11.4%

SP8.7%

GLP5.6%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 31.08.2026

Taxes 2026

ESTV

Municipal tax multiplier139%

Cantonal tax multiplier104%

139%SO range 65%145%

Tax rank 102 of 104 in canton Solothurn

Tax burden

Single, 100'000 CHF gross income

17'974 CHF(18%)

Rank 102 of 104 in the canton · 2077 of 2110 in Switzerland

Median canton 16'810 CHF · median Switzerland 15'290 CHF

Cheapest Kammersrohr 13'027 CHF · most expensive Bolken 18'375 CHF

Income tax as % of gross income

100'000 CHF:17'974 CHF(~18%)

ZullwilCanton range SolothurnSwitzerland median

Show data table

Gross income	Zullwil	Solothurn	Switzerland median
40'000	8.6%	6.1–8.8%	5.4%
50'000	11.1%	7.9–11.4%	7.8%
60'000	13.2%	9.4–13.5%	10.5%
70'000	14.7%	10.5–15.1%	11.9%
80'000	16%	11.5–16.3%	13.1%
90'000	16.9%	12.2–17.3%	14.1%
100'000	18%	13–18.4%	15.3%
110'000	18.9%	13.8–19.3%	16.3%
120'000	19.6%	14.4–20.1%	17.2%
130'000	20.5%	15.1–20.9%	18.1%
140'000	21.3%	15.7–21.8%	19%
150'000	22%	16.4–22.5%	19.7%
175'000	23.8%	17.8–24.3%	21.6%
200'000	25.3%	19.1–25.8%	23.2%
225'000	26.5%	20.1–27%	24.6%
250'000	27.6%	21.1–28.2%	25.8%
275'000	28.5%	21.9–29.1%	26.8%
300'000	29.3%	22.5–29.8%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 31.08.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–20209.2 °C

Precipitation 1991–20201'188 mm

9.2 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

973 m

Mean elevation

690 m

Relief

447 m

Mean slope

17.3°

Flat share

6.9%

South-facing

20.9%

Above 2000 m

0.0%

Relief 447 m0 m3'847 m

Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026

Solar potential

BFE

Roof potential

5.8 GWh/yr

Roofs + façades

7.6 GWh/yr

≈ households powered

1'300

6 GWh/yr01'133 GWh/yr

BFE solar factsheet ↗

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Swiss Federal Office of Energy (SFOE), retrieved 31.08.2026

Electricity

ElCom · 2026

Tariff H4

31.98 Rp./kWh

Energy

13.73 Rp./kWh

Grid usage

14.26 Rp./kWh

Levies + grid surcharge

2.92 Rp./kWh

31.98 Rp./kWh9.6443.61

Canton median 30.42 Rp./kWhSwiss median 27.7 Rp./kWh

Network operator Primeo Netz AG

ElCom tariff comparison ↗

How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2026 · Federal Electricity Commission (ElCom), retrieved 28.08.2026

Housing

BFS

Vacancy rate

1.2 %

Avg. rooms

4.2

Dwellings

332

Built before 194625.3%

Built since 200118.4%

1.2 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 31.08.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026

Accessibility

ARE · NPVM

Major centrePT 62 min · Car 35 min

AgglomerationPT 53 min · Car 35 min

Remoteness 60/104 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 28.08.2026

Municipality

Wikidata · CC0

Websitezullwil.ch ↗

Wikidata · continuously updated, retrieved 31.08.2026

Rankings

Largest municipalities704 #88 SO · #1649 CH Families & children22.6% #5 SO · #392 CH Age structure20.5% #79 SO · #1145 CH Women share47.4% #97 SO · #1958 CH Foreign residents17.6% #42 SO · #1080 CH Population density192/km² #66 SO · #1055 CH Tax burden17'974 #102 SO · #2077 CH Taxes139% #102 SO Warmest municipalities9.2 °C #72 SO · #1237 CH Sunniest municipalities40.9% #25 SO · #1450 CH Rainiest municipalities1'188 mm #21 SO · #720 CH Voter turnout45.3% #97 SO · #1998 CH SVP strongholds38.4% #19 SO · #746 CH SP strongholds8.7% #78 SO · #1623 CH Centre strongholds28.2% #17 SO · #274 CH FDP strongholds11.4% #94 SO · #1214 CH GLP strongholds5.6% #50 SO · #1055 CH Green strongholds3.6% #95 SO · #1789 CH Largest by area3.7 km² #82 SO · #1764 CH Highest municipalities603 m #15 SO · #810 CH Remotest municipalities62 min #60 SO · #1262 CH Best-connected municipalities62 min #47 SO · #852 CH Highest peaks973 m #24 SO · #750 CH Highest-lying municipalities690 m #21 SO · #783 CH Greatest vertical range447 m #36 SO · #750 CH Steepest municipalities17.3° #14 SO · #482 CH Solar potential6 GWh #90 SO · #1853 CH Cheapest electricity31.98 Rp./kWh #84 SO · #1890 CH Most expensive electricity31.98 Rp./kWh #43 SO · #216 CH

Postal codes (2)

swisstopo

Localities

swisstopo · 2

Meltingen4233 Zullwil4234

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Zullwil?: Zullwil has 2 postal codes: 4233, 4234.
What is the tax rate in Zullwil?: The municipal tax multiplier of Zullwil is 139% (2026); canton SO levies 104%.
How much tax do you pay in Zullwil?: A single person without children pays about 17'974 CHF income tax in Zullwil on 100'000 CHF gross income (federal, cantonal, municipal), rank 102 of 104 in canton SO. Source: ESTV (2026).
How many residents does Zullwil have?: Zullwil has 704 residents (2025).
How many foreign residents live in Zullwil?: Zullwil has 124 foreign residents, a share of 17.61% (2025).

Map

OpenStreetMap

Compare

Zullwil compared with